Small size reference system
The small size reference system is constructed with 5000 Tags of data type double. Tags are getting live data from OPC UA data source with 2 second collection cycle creating total data ingestion load 2500 values/second. Data is stored in StreamHistory with default compression settings, and there is one aggregate (AVG) collected for each Variable. Additional data ingestion load is created by collecting 3 OPC events/s with standard attributes.
Small system reference configuration.
| Small reference system | |
|---|---|
| CPU | 4 Core (Broadcom BCM2837B0 quad-core A54 (ARMv8 running in ARMv7 32-bit compatibility mode), 1.4 GHz |
| RAM | 4 GB |
| DISK | SSD 500GB (Samsung MZ-76E500BW) |
| OS | Linux, Debian Buster |
Resource consumptions are measured for the reference configuration and load, and presented in the table below separately for the key services as well as the total numbers.
| Resource | Small reference system |
|---|---|
| Disk space consumption | 4 GB + 125 MB/day |
| Total CPU consumption | 6.4 % |
| RAM consumption | 1.1 GB |
| Disk load | 1.6 % (excluding backup) |